Cover for a jack assembly



FIG. 1 is a perspective view of a cover for a jack assembly showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a rear view thereof.

The broken lines depict environment and form no part of the claimed design. 

CLAIM The ornamental design for a cover for a jack assembly, as shown and described. 